I keep seeing online descriptions that tell me this knot is used to secure a boat (mooring line) to a post or a dock. I guess that’s what it’s used for the most. This is a semi-strong knot to use for attaching objects to other objects, but I wouldn’t put complete trust in it. It’s fairly strong, but not the strongest. I’ve actually towed cars using this knot, so I’d say it’s strong enough for many uses. It’s the redundancy that does it. Two round turns and then two half hitches. That’s pretty good. There’s a good amount of friction in there to stop the knot from sliding out and much of the load is applied to the first turn.
While I used a carabiner to tie around in this demo, I wouldn’t necessarily climb using this knot. It was something to tie around though, so that’s what I did. If I had to use this knot for climbing, I would tie a stopper knot at the end of the rope, such as the Overhand Knot.
To tie the knot, take your rope and get it ready for action.
Next, take the working end of the rope and pass it around the object you’re tying to once. And then do that same thing again, so you have two passes around the object.
After that, take the working end and pass it over the standing part and make the first Half Hitch.
And finally, take the working end and repeat the previous step. Take it and create the same Half Hitch again for Two Half Hitches.
And there you have it. The Round Turn & Two Half Hitches Knot.